機器
bank
business
buy
buyer
cashier
cashless
checkout
chips
client
close up
commercial
consumerism
contactless
copy space
counter
credit card
debit
device
digital
electronic
equipment
hand
holding
illuminated
mobile phone
money
online
paying
payment
purchase
reader
retail
sale
service
shop
smartphone
store
system
technology
terminal
transaction
transfer
two person
vertical
white background
wireless
working